题目内容（请给出正确答案）

[主观题]

YouarecreatingaWindowscomponentbyusingthe.NetFramework3.5.thecomponentwillbeusedinMicrosof

tWord2007byusingaribbonbutton.Thecomponentisusedforuploadingfiles.YoufindthatWord2007becomesnon-responsiveduringtheupload.Youneedtoensurethattheapplicationcompletestheuploadefficiently.What should you do？（）

A.UsetheAsyncResult.SyncProcessMessagemethod.

B.CalltheBeginInvokemethod，performtheupload，andthencalltheEndInvokemethod

C.RetrieveaWaitHandlefromanimplementationoftheIAsyncResultinterfacebeforetheupload.

D.SettheIsCompletedpropertyonanimplementationoftheIAsyncResultinterfacebeforetheupload.

提问人：网友qllovezc 发布时间：2022-01-07

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